Finding the Fourth Proportional to 77,456,026.99, 106,891,234.00 and 42,175,766.21
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Solution
The fourth proportional to 77,456,026.99, 106,891,234.00 and 42,175,766.21 is: 58,203,601.07
Step by Step Solution
- Step 1: Write the proportion equation
77,456,026.99 : 106,891,234.00 = 42,175,766.21 : x - Step 2: Convert to fraction form
77,456,026.99/106,891,234.00 = 42,175,766.21/x - Step 3: Cross multiply
77,456,026.99x = 106,891,234.00 × 42,175,766.21 - Step 4: Simplify right side
77,456,026.99x = 4,508,219,695,244,192 - Step 5: Solve for x
x = 4,508,219,695,244,192/77,456,026.99 - Step 6: Final answer
x = 58,203,601.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.